This two foot cord is annoying as heck.
I don't know about the US edition but the wall charger for mine has removable prongs. The interface will fit power cords as well so I was able to add another 3 ft.
Take the prongs off this thing:
You'll be able to find a cord that fits the female end inside the USB adapter at Radio Shack.
OMG, that was the FIRST thing I purchased. Got mine from Amazon here: Amazon.com: KHOMO Super Long 6ft (SIX Feet!) USB Data Charging Cable for Samsung Galaxy Tab: Computers & Accessories
Separate names with a comma.